[Scons-users] Acccessing environment variables

[Florian Lindner]

Hello,

I have created my environment with:

env = Environment(variables = vars, ENV = os.environ)

I expect that I can access all env variables that are available on shell 
too, but:

(set a pdb.set_trace() below setting env like above)

(Pdb) os.environ["PETSC_DIR"]
'/data2/scratch/lindner/petsc'
(Pdb) env["PETSC_DIR"]
*** KeyError: 'PETSC_DIR'

What is wrong there? Probably with my understanding... ;-)

Thx,
Florian